1. Mario (2D Mario, 3D Mario and Mario RPG)
2. Pokemon
3. Legend of Zelda
4. Kirby
5. Donkey Kong (Original, Country, etc)
6. Yoshi (Islands and Story)
7. Super Smash Bros.
8. Mario Kart
9. Earthbound/Mother
10. Star Fox
Followed by
11. Metroid
12. Golden Sun
13. Wario
14. Advance Wars
15. Kid Icarus
16. Ice Climbers
17. Duck Hunt
18. F-Zero
I still need to play Fire Emblem, Punch Out!, Animal Crossing, Pikmin, and Xenoblade (again)
Once I start on Fire Emblem it'll probably be somewhere around 7 or 8. If I enjoy it a lot it might knock out DK.
Edit: oop nvm I added yoshi as a separate series